Apparatus and method for managing usim data of device by using mobile trusted module

A universal subscriber identity module (USIM) data management apparatus of the present invention manages USIM data in a terminal using a mobile trusted module (MTM). The USIM data management apparatus may comprise: a mobile information storage unit configured to store at least one key and the USIM data in a protection area; an information security unit configured to protect information stored in a USIM and the terminal using at least one among the USIM data and the key stored in the mobile information storage unit; and a USIM data manager configured to restore at least one among the USIM data and the key stored in the mobile information storage unit to the USIM, and store at least one among the USIM data and the key provided from the USIM in the mobile information storage unit. [Reference numerals] (110) Mobile information storage unit; (120) Information security unit (MIM); (131) USIM data storage unit; (132) USIM data restoring unit; (140) Message converting unit; (150) Input/output interface unit; (200) Universal subscriber identity module (USIM); (210) Data management applet; (220) Memory; (230) Key or authentication generating unit; (240) Input/output interface unit; (AA) Reliable app. program 1; (BB) Reliable app. program n-1; (CC) Reliable app. program n; (DD) Applet 1; (EE) Applet 2; (FF) File system; (GG) Manager confidential data; (HH) User confidential data